Why not get the iCom, and then you can choose pretty much any mobile that you like?
I have an iPhone 3GS paired with the Oticon bluetooth streamer and it is fantastic. The sound quality is amazing. Also, if someone calls me then the phone immediately pairs with my hearing aids, so I never miss calls these days (used to have problems hearing the phone ring, even with the loudest, most obnoxious ringtone!).
In an emergency, I can just about get away with using the iPhone without the streamer, but only if the volume is on maximum, there is a clear speaker/line and no background noise.
Interesting that the Blackberry has a T-coil fitted though, would love to try that out. Most mobiles give me really bad interference when my aids are on the T setting.